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WO2012048369A1 - Ensemble soupape - Google Patents

Ensemble soupape Download PDF

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Publication number
WO2012048369A1
WO2012048369A1 PCT/AU2011/001296 AU2011001296W WO2012048369A1 WO 2012048369 A1 WO2012048369 A1 WO 2012048369A1 AU 2011001296 W AU2011001296 W AU 2011001296W WO 2012048369 A1 WO2012048369 A1 WO 2012048369A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
fluid
valve member
flow path
valve assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU2011/001296
Other languages
English (en)
Inventor
Ian Francis Wilson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STRATHBROOK INDUSTRIAL SERVICES Pty Ltd
Original Assignee
STRATHBROOK INDUSTRIAL SERVICES Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2010904536A external-priority patent/AU2010904536A0/en
Application filed by STRATHBROOK INDUSTRIAL SERVICES Pty Ltd filed Critical STRATHBROOK INDUSTRIAL SERVICES Pty Ltd
Publication of WO2012048369A1 publication Critical patent/WO2012048369A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/184—Combined check valves and actuated valves
    • F16K15/1848—Check valves combined with valves having a rotating tap or cock

Definitions

  • the present invention relates to valves for controlling the flow of fluids in systems which use pipes, such as but not limited to refrigeration systems.
  • Refrigeration systems cycle a refrigerant around a piped network of evaporators, condensers, compressors, expansions valves and other heat exchange devices. During the refrigeration cycle heat is repeatedly transferred to and from the refrigerant, and as this occurs, the refrigerant undergoes several pressure and phase changes.
  • the pipes used in refrigeration systems are typically selected to withstand increases in pressure of the refrigerant. Often, during maintenance and repair, certain sections of the piped network are closed off by valves stopping the flow of refrigerant. Refrigerant trapped in closed off portions of the network can warm significantly and the associated increase in refrigerant pressure can lead to pipe damage or system failure.
  • the present invention provides a valve assembly for controlling the flow of a fluid, the valve assembly including a main body with an inlet and an outlet, the main body including:
  • a secondary fluid flow path providing an alternative flow path from the inlet to the outlet, the secondary fluid flow path being closable by a second valve member, wherein a pressure difference between the fluid at the inlet and the fluid at the outlet causes the second valve member to open and allow the fluid to flow via the secondary fluid flow path.
  • the second valve member is biased towards a closed position. In one form, the second valve member opens to substantially equalise the pressure of the fluid at the inlet and the fluid at the outlet when the first valve member is closed.
  • the second valve member is biased by a spring.
  • the second valve member opens when the force exerted thereon resulting from the pressure difference between the fluid at the inlet and the fluid at the outlet is greater than the biasing force of the spring.
  • the closed position of the second valve member has the second valve member seated in a valve seat formed by a constriction in the secondary fluid flow path.
  • the spring engages the second valve member from the inlet side such that when the fluid pressure at the outlet side of the second valve member is higher than the fluid pressure at the inlet side of the second valve member, and the force applied to the second valve resulting from the pressure difference is greater than the biasing force of the spring, the second valve member moves off the valve seat, compressing the spring, and allowing fluid to flow through the secondary fluid flow path.
  • the primary flow path is formed of a primary bore extending between the inlet and outlet.
  • the secondary flow path is formed of a bored bypass that branches off the primary bore to bypass the first valve member and re-merges with the primary bore on the other side of the first valve member.
  • the first valve member is a ball valve.
  • the fluid is a refrigerant.
  • valve assembly is for use in a refrigeration system.
  • valve assembly is formed of a single body.
  • valve assembly is hermetically sealed.
  • Figure 1 is a sectional view of the valve according to one example of the invention.
  • Figure 2 indicates an example of the direction of flow of refrigerant for the valve of figure 1.
  • Examples of the present invention provide a valve assembly for controlling the flow of a fluid, the valve assembly including a main body with an inlet and an outlet.
  • the valve assembly includes a first fluid flow path from the inlet to the outlet and the primary fluid flow path is closable by a first valve member.
  • the valve assembly also includes a secondary fluid flow path providing an alternative flow path from the inlet to the outlet, the secondary flow path being closable by a second valve member. A pressure difference between the fluid at the inlet and the fluid to the outlet causes the second valve member to open and allow the fluid to flow via the secondary flow path.
  • the valve assembly (1) includes a main body (2) having an inlet (3) and an outlet (4).
  • a primary fluid flow path (5) extends from the inlet (3) to the outlet (4) and is closable by ball valve (6).
  • a secondary fluid flow path (7) provides an alternate flow path from the inlet (3) to the outlet (4).
  • the secondary flow path is closable by a second valve member (8).
  • the second valve member (8) is biased towards a closed position by a spring (9).
  • the primary fluid flow path (5) is open and the ball valve (6) allows refrigerant to pass through the valve assembly (1).
  • Flow is determined by pressure or gravity and can operate in either direction.
  • the fluid pressure on each side of the valve assembly (1) is able to change independently.
  • the fluid pressure on each side of the valve may remain the same, or may rise or fall depending on the location of the valve assembly (1) and application that the valve assembly (1) is being used for.
  • valve assembly (1) provides that in this situation the secondary fluid flow path (7) will open and allow refrigerant to pass through, bypassing the closed ball valve (6). The pressure is thereby relieved to a location where the system is protected by a pressure relief valve.
  • the second valve member (8) can open to substantially equalise the pressure of the fluid at the inlet (3) and the fluid at the outlet (4).
  • the second valve member (8) opens when the force on the second valve member resulting from the pressure difference between the fluid at the inlet (3) and the fluid at the outlet (4) is greater than the biasing force of the spring (9).
  • the second valve member (8) and spring (9) arrangement is integrated into the secondary flow path (7) and in the embodiment of figure 1, the length of the spring is positioned parallel to the primary flow path.
  • the second valve member (8) In the closed position, the second valve member (8) is seated in a valve seat (10) formed by a constriction (11) in the secondary fluid flow path (7).
  • the spring (9) engages the second valve member (8) from the inlet side, the force of the spring pressing the second valve member (8) into the valve seat (10).
  • the primary fluid flow path (5) is formed of a primary bore extending between the inlet and the outlet.
  • the secondary flow path is formed of a bored bypass that branches off the primary bore to bypass the ball valve (6) and thereafter re-merges with the primary bore on the other side of the ball valve (6).
  • the primary and secondary flow paths are formed by boring through a single body, the entire valve assembly (1), apart from the openings at the inlet and outlet, is hermetically sealed such that there is no possibility for leakage of refrigerant.
  • the valve assembly (1) effectively has an internal relief function which allows refrigerant liquid, vapour or super critical fluid to bypass the ball valve (6) in the event that the pressure on outlet (4) side of the valve assembly is higher than the pressure on the inlet (3) side. This prevents the need to have a pressure relief valve on both sides of the valve assembly or to fit an external check valve which would be piped around a standard valve.
  • the first valve member for closing the primary flow path, is not limited to ball valves.
  • the first valve member may be a solenoid valve, globe valve, packed cap valve, diaphragm valve, stop valve or stop check valve.
  • the embodiments of figures 1 and 2 only allow refrigerant to bypass the first valve member (ball valve) in one direction.
  • other embodiments may be capable of relieving high fluid pressures on both sides of the valve assembly. For example, this could be achieved by incorporating a further flow path with a spring biased valve which mirrors that of the secondary flow path. Alternatively a different biased valve member for the secondary flow path could be used, such as a flapping leaf spring. Such an alternate mechanism could allow fluid flow in either direction to equalise fluid pressure across the valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

La présente invention concerne un ensemble soupape permettant le contrôle de l'écoulement d'un fluide, l'ensemble soupape comportant un corps principal avec un orifice d'entrée et un orifice de sortie, le corps principal comprenant: un chemin primaire d'écoulement de fluide depuis l'orifice d'entrée jusqu'à l'orifice de sortie, le chemin d'écoulement primaire étant apte à être fermé par un premier organe de soupape ; et, un chemin secondaire d'écoulement de fluide fournissant un chemin alternatif de fluide depuis l'orifice d'entrée jusqu'à l'orifice de sortie, le chemin d'écoulement secondaire de fluide étant apte à être fermé par un second organe de soupape, la différence de pression entre le fluide à l'orifice d'entrée et le fluide à l'orifice de sortie entraînant l'ouverture du second organe de soupape pour permettre l'écoulement du fluide via le chemin secondaire d'écoulement de fluide.
PCT/AU2011/001296 2010-10-11 2011-10-11 Ensemble soupape Ceased WO2012048369A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2010904536 2010-10-11
AU2010904536A AU2010904536A0 (en) 2010-10-11 A valve assembly

Publications (1)

Publication Number Publication Date
WO2012048369A1 true WO2012048369A1 (fr) 2012-04-19

Family

ID=45937766

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2011/001296 Ceased WO2012048369A1 (fr) 2010-10-11 2011-10-11 Ensemble soupape

Country Status (1)

Country Link
WO (1) WO2012048369A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016182599A1 (fr) * 2015-05-13 2016-11-17 Parker-Hannifin Corporation Robinet à bille avec élément limiteur de pression
CN109340407A (zh) * 2018-09-14 2019-02-15 镇江努塞尔热能科技有限公司 带泄压功能的直角球阀
EP3538801A4 (fr) * 2016-11-08 2020-06-17 Mueller International, LLC Corps de clapet à dérivation intégrée
CN111765294A (zh) * 2020-05-22 2020-10-13 横店集团东磁股份有限公司 一种适用于净水器的水龙头
IT202300003072A1 (it) 2023-02-22 2024-08-22 Castel S R L Valvola a sfera con sistema di ritegno

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017922A (en) * 1959-04-30 1962-01-23 Canadian Pratt & Whitney Aircr Fuel supply system with pressure balanced accumulator to control fuel surges
US4681297A (en) * 1985-05-01 1987-07-21 Emerson Electric Co. Adjustable pressure regulating solenoid valve
US6021797A (en) * 1996-01-26 2000-02-08 Pirelli Cable Corporation Automatic by-pass valving systems and methods
US6644066B1 (en) * 2002-06-14 2003-11-11 Liebert Corporation Method and apparatus to relieve liquid pressure from receiver to condenser when the receiver has filled with liquid due to ambient temperature cycling
CN101078447A (zh) * 2006-05-26 2007-11-28 宝山钢铁股份有限公司 压差式自动关闭阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017922A (en) * 1959-04-30 1962-01-23 Canadian Pratt & Whitney Aircr Fuel supply system with pressure balanced accumulator to control fuel surges
US4681297A (en) * 1985-05-01 1987-07-21 Emerson Electric Co. Adjustable pressure regulating solenoid valve
US6021797A (en) * 1996-01-26 2000-02-08 Pirelli Cable Corporation Automatic by-pass valving systems and methods
US6644066B1 (en) * 2002-06-14 2003-11-11 Liebert Corporation Method and apparatus to relieve liquid pressure from receiver to condenser when the receiver has filled with liquid due to ambient temperature cycling
CN101078447A (zh) * 2006-05-26 2007-11-28 宝山钢铁股份有限公司 压差式自动关闭阀

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016182599A1 (fr) * 2015-05-13 2016-11-17 Parker-Hannifin Corporation Robinet à bille avec élément limiteur de pression
US10107406B2 (en) 2015-05-13 2018-10-23 Parker-Hannifin Corporation Ball valve with pressure relief feature
EP3538801A4 (fr) * 2016-11-08 2020-06-17 Mueller International, LLC Corps de clapet à dérivation intégrée
US11384845B2 (en) 2016-11-08 2022-07-12 Mueller International, Llc Valve body with identification tab
US11959558B2 (en) 2016-11-08 2024-04-16 Mueller International, Llc Valve body with bypass
CN109340407A (zh) * 2018-09-14 2019-02-15 镇江努塞尔热能科技有限公司 带泄压功能的直角球阀
CN111765294A (zh) * 2020-05-22 2020-10-13 横店集团东磁股份有限公司 一种适用于净水器的水龙头
CN111765294B (zh) * 2020-05-22 2021-11-19 横店集团东磁股份有限公司 一种适用于净水器的水龙头
IT202300003072A1 (it) 2023-02-22 2024-08-22 Castel S R L Valvola a sfera con sistema di ritegno

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